What material are these pistons made from and why is it important?

These pistons are forged from 2618 aluminum. This material is chosen for its high tensile strength, which is crucial for handling the extreme pressures and temperatures found in high-performance and racing engines.

What is the benefit of the Forged Side Relief (FSR) design?

The FSR design helps reduce friction and power loss by using a narrower piston skirt and a shorter wrist pin. This also contributes to saving weight in the rotating assembly, which can improve engine response.

Are these pistons compatible with all 400 SBC engines?

This set is designed for 400 SBC engines and is intended for high-demand performance applications. It's important to confirm that the bore size (4.130 inches) and dome volume (.175 dome) are correct for your specific engine build and desired compression ratio.

JE Pistons 400 SBC Dome Piston Set 182025

Name: JE Pistons 400 SBC .175 DOME Set of 8 Pistons
Brand: JE Pistons
SKU: je-pistons-je-pistons-400-sbc-175-dome-set-of-8-pistons-t14-295295
Price: 1052.79 USD
Availability: BackOrder

JE Pistons 400 SBC .175 DOME Set of 8 Pistons

$1052.79

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

JE Pistons 400 SBC .175 Dome Set of 8 Pistons. Forged in the USA from 2618 aluminum for high-demand performance.

Key Features

Fits 400 SBC engines.
Set includes 8 forged pistons with a .175 dome.
Forged in the USA from 2618 aluminum for high tensile strength.
Features JE Pistons' proprietary Forged Side Relief (FSR) design to minimize friction and save weight.
May include an accumulator groove for improved ring seal and consistent power.
Skirt coating (application dependent) reduces friction, wear, and noise.

This piston set is designed for 400 SBC engines. Please verify compatibility with your specific engine build before purchase.

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Product Details

If you're building a high-performance 400 SBC engine, you're looking at a set of JE Pistons forged pistons. These are designed to handle the demands of serious performance applications, whether that's on the drag strip or a dedicated race car. JE Pistons has been making forged pistons for over 75 years, and these are made entirely in the USA.

These pistons are forged from 2618 aluminum, which gives them the high tensile strength needed for demanding engine builds. They feature JE's proprietary Forged Side Relief (FSR) design, which helps reduce friction and power loss by using a narrower skirt and a shorter wrist pin, saving weight in the process. Depending on the specific application, you might also find an accumulator groove to help manage combustion gas pressure, which improves ring seal and keeps power consistent. Some applications also include a skirt coating to further reduce friction and wear on the piston skirts and cylinder walls, which can also help quiet down engine noise.

This set includes eight pistons, each with a .175 dome and a 4.130-inch bore. They are designed specifically for the 400 SBC engine and its intended use, aiming for optimized performance and durability. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. You'll also want to refer to the manufacturer's installation instructions for specific details on assembly and break-in procedures.